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Monitoring material based on oxidized graphene and preparation method and application of material

A technology of graphene and photocatalytic materials, which is applied in the direction of material analysis through observation of the influence of chemical indicators, analysis through chemical reactions of materials, thermometers with physical/chemical changes, etc., can solve the problem of vaccines without corresponding Labeling, users are not easy to find out, and have no awareness to judge the deterioration or failure of the vaccine, so as to achieve the effect of easy packaging and difficult chemical reaction

Inactive Publication Date: 2016-11-16
CHINA ACADEMY OF SPACE TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, when the properties of the corresponding items change, the user is not easy to find out because there is no corresponding obvious prompt or mark, thus endangering the personal safety of the vaccine, medicine or food users
For example, in the Shandong vaccine incident, even experienced doctors did not have the consciousness to judge whether the vaccine had deteriorated or failed because the vaccine did not have a corresponding label when administering the vaccine.

Method used

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  • Monitoring material based on oxidized graphene and preparation method and application of material
  • Monitoring material based on oxidized graphene and preparation method and application of material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Add 10 g of graphene oxide and 0.5 g of titanium dioxide into 1 L of water, and disperse ultrasonically for 30 minutes in the dark at 6° C. to obtain a mixed solution I with uniform composition; further, add 0.1 g of glucose to the above mixed solution, and ultrasonically disperse Disperse for 5 minutes to obtain the mixed liquid II with uniform composition;

[0035] (2) The above mixed liquid II was obtained by suction filtration at 6° C. to obtain a film-shaped monitoring material. In the prepared state, the color of the material is yellow, such as figure 1 shown;

[0036] (3) The obtained yellow film-like monitoring material is fixed on the outer packaging surface of the vaccine to be monitored with plastic packaging;

[0037] (4) the vaccine with the yellow film-like monitoring material obtained in step (3) was irradiated in sunlight for 8 hours, and the color of the monitoring material changed to black, as figure 2 As shown, it shows that the monitoring mat...

Embodiment 2

[0039] (1) Add 0.5g of graphene oxide, 0.05g of titanium dioxide and 0.05g of zinc oxide into 1L of water, and ultrasonically disperse for 5 minutes in the dark at 1°C to obtain a mixed solution I with uniform composition; further, in the above mixed solution Add 0.1g fructose, ultrasonically disperse for 1 minute, and obtain a mixture II with uniform composition;

[0040] (2) The above mixed solution II is sprayed and dried to obtain a powdery monitoring material. In the prepared state, the color of the material is yellow;

[0041] (3) The obtained yellow powdery monitoring material is fixed on the outer packaging surface of the drug to be monitored with a glass package;

[0042] (4) Store the drug with yellow powdery monitoring material obtained in step (3) in the dark at 30°C for 24 hours, and the color turns to dark yellow, indicating that the monitoring material has a good light indication effect, and also prompts The medicine has been exposed to light or temperature ri...

Embodiment 3

[0044] (1) Add 10 g of graphene oxide, 1 g of titanium dioxide and 1 g of zinc oxide into 1 L of water, and ultrasonically disperse for 60 minutes at 4°C in the dark to obtain a mixed solution I with uniform composition; further, add 0.025 G glucose, 0.025g maltose, 0.025g fructose, 0.025g vitamin C, ultrasonically dispersed for 5 minutes to obtain a mixed solution with uniform composition;

[0045] (2) The above mixed solution II is dried at a low temperature to obtain a bulk material as a temperature monitoring material. In the prepared state, the color of the material is yellow;

[0046] (3) The obtained yellow block monitoring material is fixed on the outer packaging surface of the food to be monitored with plastic packaging;

[0047] (4) Store the food with yellow blocky monitoring material obtained in step (3) in sunlight at 25°C for 2 hours, and the color turns to dark yellow, indicating that the monitoring material has a good light indicating effect, and it also promp...

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Abstract

The invention belongs to the technical field of monitoring of perishable food, medicine or vaccines and relates to a monitoring material based on oxidized graphene and a preparation method and application of the material, in particular to a monitoring material sensitive to temperature and / or light. The material is used for monitoring light and temperature for cold-chain logistics storage and on the basis of oxidized graphene. The monitoring material is prepared through the steps that oxidized graphene, a photocatalytic material and a reduction agent are dispersed in water to obtain a mixed solution, the mixed solution is fully dried, and accordingly the mixture of the three materials is obtained. The material is yellow in the preparation state, the material gradually becomes dark yellow or even black under the light or high-temperature (larger than 8 DEG C) condition, color change has the irreversible characteristic, and accordingly the material has the effect of monitoring light and temperature at the same time. The material has important application prospects in the fields of shading, low-temperature cold-chain logistics and storage.

Description

technical field [0001] The invention relates to a monitoring material based on graphene oxide and its preparation method and application, in particular to a monitoring material sensitive to temperature and / or light, belonging to the technical field of perishable food, medicine or vaccine monitoring, the material is used for Graphene oxide-based light and temperature monitoring materials for cold chain logistics warehousing. Background technique [0002] At present, a large number of vaccines, medicines and foods need to be stored, transported and used under low temperature and dark cold chain conditions. If one of the links causes the item to leave the cold chain environment due to equipment failure or other reasons, the corresponding properties of the item will change. However, in the prior art, when the property of the corresponding item changes, it is not easy for the user to find out because there is no corresponding obvious prompt or mark, thereby endangering the perso...

Claims

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Application Information

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IPC IPC(8): G01N21/78G01K11/12
CPCG01K11/12G01N21/78
Inventor 贾怡
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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